examples/css3d_orthographic.html

<!DOCTYPE html>
<html>
	<head>
		<title>three.js css3d - orthographic</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
		<style>
			body {
				background-color: #f0f0f0;
			}
			a {
				color: #f00;
			}
			#info {
				color: #000000;
			}
		</style>
	</head>
	<body>
		<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> css3d - orthographic</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
			import { CSS3DRenderer, CSS3DObject } from 'three/addons/renderers/CSS3DRenderer.js';
			import { GUI } from 'three/addons/libs/lil-gui.module.min.js';

			let camera, scene, renderer;

			let scene2, renderer2;

			const frustumSize = 500;

			init();
			animate();

			function init() {

				const aspect = window.innerWidth / window.innerHeight;
				camera = new THREE.OrthographicCamera( frustumSize * aspect / - 2, frustumSize * aspect / 2, frustumSize / 2, frustumSize / - 2, 1, 1000 );

				camera.position.set( - 200, 200, 200 );

				scene = new THREE.Scene();
				scene.background = new THREE.Color( 0xf0f0f0 );

				scene2 = new THREE.Scene();

				const material = new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true, wireframeLinewidth: 1, side: THREE.DoubleSide } );

				// left
				createPlane(
					100, 100,
					'chocolate',
					new THREE.Vector3( - 50, 0, 0 ),
					new THREE.Euler( 0, - 90 * THREE.MathUtils.DEG2RAD, 0 )
				);
				// right
				createPlane(
					100, 100,
					'saddlebrown',
					new THREE.Vector3( 0, 0, 50 ),
					new THREE.Euler( 0, 0, 0 )
				);
				// top
				createPlane(
					100, 100,
					'yellowgreen',
					new THREE.Vector3( 0, 50, 0 ),
					new THREE.Euler( - 90 * THREE.MathUtils.DEG2RAD, 0, 0 )
				);
				// bottom
				createPlane(
					300, 300,
					'seagreen',
					new THREE.Vector3( 0, - 50, 0 ),
					new THREE.Euler( - 90 * THREE.MathUtils.DEG2RAD, 0, 0 )
				);

				//

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				renderer2 = new CSS3DRenderer();
				renderer2.setSize( window.innerWidth, window.innerHeight );
				renderer2.domElement.style.position = 'absolute';
				renderer2.domElement.style.top = 0;
				document.body.appendChild( renderer2.domElement );

				const controls = new OrbitControls( camera, renderer2.domElement );
				controls.minZoom = 0.5;
				controls.maxZoom = 2;

				function createPlane( width, height, cssColor, pos, rot ) {

					const element = document.createElement( 'div' );
					element.style.width = width + 'px';
					element.style.height = height + 'px';
					element.style.opacity = 0.75;
					element.style.background = cssColor;

					const object = new CSS3DObject( element );
					object.position.copy( pos );
					object.rotation.copy( rot );
					scene2.add( object );

					const geometry = new THREE.PlaneGeometry( width, height );
					const mesh = new THREE.Mesh( geometry, material );
					mesh.position.copy( object.position );
					mesh.rotation.copy( object.rotation );
					scene.add( mesh );

				}

				window.addEventListener( 'resize', onWindowResize );
				createPanel();

			}

			function onWindowResize() {

				const aspect = window.innerWidth / window.innerHeight;

				camera.left = - frustumSize * aspect / 2;
				camera.right = frustumSize * aspect / 2;
				camera.top = frustumSize / 2;
				camera.bottom = - frustumSize / 2;

				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

				renderer2.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				requestAnimationFrame( animate );

				renderer.render( scene, camera );
				renderer2.render( scene2, camera );

			}

			function createPanel() {

				const panel = new GUI();
				const folder1 = panel.addFolder( 'camera setViewOffset' ).close();

				const settings = {
					'setViewOffset'() {

						folder1.children[ 1 ].enable().setValue( window.innerWidth );
						folder1.children[ 2 ].enable().setValue( window.innerHeight );
						folder1.children[ 3 ].enable().setValue( 0 );
						folder1.children[ 4 ].enable().setValue( 0 );
						folder1.children[ 5 ].enable().setValue( window.innerWidth );
						folder1.children[ 6 ].enable().setValue( window.innerHeight );

					},
					'fullWidth': 0,
					'fullHeight': 0,
					'offsetX': 0,
					'offsetY': 0,
					'width': 0,
					'height': 0,
					'clearViewOffset'() {

						folder1.children[ 1 ].setValue( 0 ).disable();
						folder1.children[ 2 ].setValue( 0 ).disable();
						folder1.children[ 3 ].setValue( 0 ).disable();
						folder1.children[ 4 ].setValue( 0 ).disable();
						folder1.children[ 5 ].setValue( 0 ).disable();
						folder1.children[ 6 ].setValue( 0 ).disable();
						camera.clearViewOffset();

					}
				};

				folder1.add( settings, 'setViewOffset' );
				folder1.add( settings, 'fullWidth', window.screen.width / 4, window.screen.width * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { fullWidth: val } ) ).disable();
				folder1.add( settings, 'fullHeight', window.screen.height / 4, window.screen.height * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { fullHeight: val } ) ).disable();
				folder1.add( settings, 'offsetX', 0, 256, 1 ).onChange( ( val ) => updateCameraViewOffset( { x: val } ) ).disable();
				folder1.add( settings, 'offsetY', 0, 256, 1 ).onChange( ( val ) => updateCameraViewOffset( { y: val } ) ).disable();
				folder1.add( settings, 'width', window.screen.width / 4, window.screen.width * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { width: val } ) ).disable();
				folder1.add( settings, 'height', window.screen.height / 4, window.screen.height * 2, 1 ).onChange( ( val ) => updateCameraViewOffset( { height: val } ) ).disable();
				folder1.add( settings, 'clearViewOffset' );

			}

			function updateCameraViewOffset( { fullWidth, fullHeight, x, y, width, height } ) {

				if ( ! camera.view ) {

					camera.setViewOffset( fullWidth || window.innerWidth, fullHeight || window.innerHeight, x || 0, y || 0, width || window.innerWidth, height || window.innerHeight );

				} else {

					camera.setViewOffset( fullWidth || camera.view.fullWidth, fullHeight || camera.view.fullHeight, x || camera.view.offsetX, y || camera.view.offsetY, width || camera.view.width, height || camera.view.height );

				}

			}

		</script>
	</body>
</html>